Diesel fuel composition and a method to improve...

C - Chemistry – Metallurgy – 10 – L

Patent

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C10L 1/22 (2006.01)

Patent

CA 2520720

Disclosed is a stabilized diesel fuel composition comprising a) a diesel fuel with a cetane number less than or equal to 50, b) an effective amount of at least one compound selected from the group consisting of the cetane improvers and c) i) an effective stabilizing amount of at least one compound selected from the group consisting of the stable nitroxide compounds or ii) an effective synergistic stabilizing amount of at least one compound selected from the group consisting of the stable nitroxide compounds and at least one antioxidant compound selected from the group consisting of the aromatic amine antioxidants and the hindered phenolic antioxidants. The cetane improvers are for example nitrate esters. The diesel fuel compositions exhibit improved filterability.

L'invention concerne une composition de carburant diesel stabilisée contenant a) un carburant diesel avec un nombre de cétane inférieur ou égal à 50, b) une quantité efficace d'au moins un composé sélectionné parmi le groupe englobant les améliorateurs de cétane et, c) i) une quantité stabilisante efficace d'au moins un composé sélectionné parmi le groupe renfermant les composés de nitroxyde stables ou ii) une quantité stabilisante synergique efficace d'au moins un composé sélectionné parmi le groupe comprenant les composés de nitroxyde stables et au moins un composé antioxydant sélectionné parmi le groupe englobant les antioxydants aminiques aromatiques et les antioxydants phénoliques entravés. Les améliorateurs de cétane sont, par exemple, des esters de nitrate. Ces compositions de carburant diesel présentent une filtrabilité améliorée.

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